Fujitsu ARXG22KMLB Design & Technical Manual page 189

 External heater output
Function Rotary SW of External
setting / input and output PCB
60-11 / D
60-00 / 2
60-09 / B
60-10 / C
Output signal
Low → High
Off → On
High → Low
On → Off
Specifications of the signal output performance are as shown as follows:
Example: When set temperature (Ts) is set at 22 °C;
• And room temperature (Tr) increase above 12 °C, signal output is on.
• And Tr increase above 21 °C, signal output is off.
• And Tr decrease below 19 °C, signal output is on.
• And Tr decrease below 10 °C, signal output is off.
The output also turns off in defrost operation.
11-4. Ceiling type
Output of indoor unit
External input and output
Heater turns on as shown in diagram of heating temperature
Heater turns off as shown in diagram of heating temperature
• Other than Heating mode
• Error occurred
• Forced thermo off
• Fan stop protection
Tr-Ts=-1 °C
Tr-Ts=-10 °C
External output
CN47
Output 3
PCB
Condition
Tr-Ts
Off
Tr-Ts=-3 °C
On
Tr-Ts=-12 °C
Off
- 181 -
Output signal Command
Low → High Heater on
High → Low Heater off
Off → On Heater on
On → Off Heater off
11. External input and output